40143041 has 2 divisors, whose sum is σ = 40143042. Its totient is φ = 40143040.

The previous prime is 40143017. The next prime is 40143079. The reversal of 40143041 is 14034104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40132225 + 10816 = 6335^2 + 104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40143041 is a prime.

It is a super-2 number, since 2×40143041² = 3222927481455362, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40143011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20071520 + 20071521.

It is an arithmetic number, because the mean of its divisors is an integer number (20071521).

Almost surely, 2^40143041 is an apocalyptic number.

It is an amenable number.

40143041 is a deficient number, since it is larger than the sum of its proper divisors (1).

40143041 is an equidigital number, since it uses as much as digits as its factorization.

40143041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40143041 is about 6335.8536125766. The cubic root of 40143041 is about 342.4023654786.

Adding to 40143041 its reverse (14034104), we get a palindrome (54177145).

The spelling of 40143041 in words is "forty million, one hundred forty-three thousand, forty-one".